I first did mine by accident, sometimes when you lean extremely hard to one side, you tend to turn tht way. well, just do it, so lean a bit to one side and then turn that way around, its surprisingly easy, its just a trick....

You can try bouncing a little. Or even sliding your front foot forward just before you turn around. sometimes if you smoke a piece of a joint, or have a couple beers it helps relax your muscles and turning around becomes easier.

I couldn't help but throw my 2 cents in since I love this hobby... For me the trick was all in posture, once you get comfortable, turn around keeping your back as straight as possible, that way no matter how goofy your footwork is, your set up in a postition to adjust whatever neccessary in little turbulence. I can turn around any way I feel like as long as I can maintain that balance. Quick, Back Straight!

I usually turn while walking. I put one foot down turned inwards pivot on that foot (which doesn't have a heel or toe too much in the way anymore) and then step back with my other foot once I've turned around so I can re-adjust the first foot.

Another way might be to first learn balancing with your feet turned, 90°, straight angle with the line, if you can remain/get in that position, just quickly turn your body 180° and dont move your feet, recover balance and put your feet back normal.

i find this a bit harder, but if you have a real hard time learnin it at once, this might be something for you to try, you can learn al the moves seperately, good luck and keep trying !